Improvement in hinges



D. H. JAccARD.

HINGEVS.

Patented Aug. 28,1877.

Wwmssms UNITED STATES PATENT OFFICE.

DAVID H. JACCARD, OFSAN FRANCISCO, CALIFORNIA.

IMPROVEMENT |N HINGES.

Specitcation forming part of Letters Patent N 0. 194,686, dated August28, 1877 application filed Y May 7, 1877.

To all whom it may concern: v

Be it known that I, DAVID H. JAGGARD, of San Francisco, in the county ofSan Francisco and State of California, have invented an Improvement inHinges; and I do hereby declare that the following description andaecompanying drawings are sufficient to enable any person skilled in theart or science to which my invention most nearly appertains to make anduse the same without further invention or experiment.

The object of my invention is to provide a hinge that will be concealedbetween the joint forming the cover and bod y of the box, and so that noprojections will appear.

It consists mainly of a flat link pivoted to each of the plates orleaves composing the hinge, which works in an automatic manner uponpivots in spaces between lugs formed upon the leaves, and to otherdetails of construction hereinafter more fully described, and definitelyclaimed.

Referring to the accompanying drawings and letters ot' reference markedthereon, Figure 1 is a top view, showing the hinge in position. .y Fig.2 is a vertical section. Fig. 3 is a view of the link..

The leaves or plates a b are provided with lugs or projections c c and dd, between the spaces of which is placed a hat link, E, which is pivotedto the lugs c c and d d by the pins ff. This lilik moves in an automaticmanner between the lugs when the hinge is operated. The sides of thelugs c c are recessed, and work on the ends of the lugs d d, which arerounded for this purpose.

[n attaching my hinge to boxes the inner rear sides of the top and bodyare to be mortised to a considerable depth, so as to take in the heightof the lugs, and form a close joint when the cover or lid is shut down.

The outer shell of the box is not out away, but remains intact, and thisis an important feature of Iny invention, and almost indispensable toline work, such as watch-cases, as the outer portion need not be marredat all, except by perforations for screws or rivets.

In attaching my hinge to wood boxes the automatic link E, in theoperation of opening the box, permits the lid when in a verticalposition to be carried down a little distance from the top edge of theside of the box, and thus forms a stop against the body of the box and asupport for the lid or cover.

In practice, for watch-cases, this stop may be effected by forming a ribon the top of the lugs d d, in which case the ends of the lugs c c willact as dogs to arrest the further opening of the hinge after the lid hasbeen brought to a vertical position.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In combination with the plates or leaves a, b of a hinge, providedwith lugs or projections c d, the link- E, constructed and operatingsubstantially in the manner as herein set forth and speciied.

2. The lugs c c, provided with recesses, in combination with the lugs dd, provided with rounded ends, which lit and operate in the recesses,substantially in the manner as set forth and described.

, In testimony that I claim the foregoing I have hereunto set my handand seal this 17th day of June, 1876.

D. H. JACCARD. [L. S.]

Witnesses:

G. W. M. SMITH, PHILIP MAJILEE.

